China Metal Door Manufacturers Suppliers Factory - Customized Metal Door Wholesale

What is Metal Door

Metal doors share several characteristics and properties that make them a viable option for various settings. They exhibit strength and durability, providing reliable security for both commercial and residential buildings. Metal doors are also known for their resistance to corrosion, ensuring longevity even in harsh environments. This quality makes them particularly suitable for coastal areas or locations with high levels of moisture.

Benefits of Metal Door

Provide security and safety
Security is one of the main benefits of metal doors. They're strong enough to withstand break-ins and burglaries, which makes them an excellent investment for families with children or pets who want to protect their homes from intruders.

Enhance the curb appeal
Metal doors come in many colors, shapes, and sizes, so you can choose one that fits your taste perfectly. They're available in a wide range of styles, from contemporary designs to classic French and Victorian styles that will look great on any home’s front entrance or backyard patio entranceway.

Increase energy efficiency
Metal doors help keep heat inside during cold weather conditions while preventing heat loss during warm weather conditions thanks to their thermal insulation properties, which reduce heat loss through windows, skylights, and other openings in walls or roofs.

Good insulation properties
Metal doors are also known for their excellent insulation properties. This makes them perfect for areas with a lot of wind and rain because they will help reduce the amount of noise and moisture in your home. They can also be fitted with insulation materials so that you can ensure that all sound and heat are kept out, no matter what time of year it is.

Easy to keep clean
Metal doors can easily keep clean if you choose the proper surface treatment. For example, many homeowners like the look of anodized aluminum because it's resistant to stains and scratches and doesn't require any maintenance.

Provide soundproofing capabilities
Metal doors can be an excellent choice to block out the noise outside your home. The metal is naturally soundproof, but you can also add insulation for even better results. This will keep the noise out while still allowing you to enjoy the sounds of nature inside your home.

Steel Look Doors

Specific Use:Filing Cabinet. General Use:Commercial Furniture. Type:Office Furniture.

Add to Inquiry
Steel Security Front Door

Specific Use:Filing Cabinet. General Use:Commercial Furniture. Type:Office Furniture.

Add to Inquiry
Metal Side Door

Place of Origin:China. Brand Name:JIAHUI. Model Number:JH-A-075. Door Material:Steel. Surface

Add to Inquiry
Steel Composite Doors

Place of Origin:Zhejiang, China. Brand Name:JIAHUI. Model Number:JH-A-101. Door Material:Stainless

Add to Inquiry
Metal Louvre Doors

Place of Origin:Zhejiang, China. Brand Name:JIAHUI. Model Number:JH-S-009. Door Material:Stainless

Add to Inquiry
Stainless Door for Cr

Place of Origin:Zhejiang, China. Brand Name:JIAHUI. Model Number:JH-A-53. Door Material:Stainless

Add to Inquiry

Why Choose Us

Factory area

JIAHUI DOORS was established in early 90s of 20 century, We have 3 production facilities (SHANGHAI, ZHEJIANG, JIANGSU), the coverage area is around 100,000㎡.

Production capacity

Specializing in the production of fireproof doors, steel security doors, hospital doors, fireproof windows, fireproof roller shutters, soundproof doors, explosion-proof doors, ventilation doors, etc.

OEM solutions

Various designs and colors for you to choose and also we can accept custom made. And we have a strict quality control.

After-sales service

After years of practice and exploration, the leading technology, excellent quality provide our marketing development a strong guarantee.

Key Differences Between Steel Doors and Metal Doors

Steel security doors, with their robust construction and exceptional security features, are ideal for applications that require high-level security and durability. They excel in commercial, industrial, and residential settings where protection against forced entry and extreme weather conditions is crucial.

On the other hand, metal doors provide a wider range of options, including aluminium, galvanised steel, and stainless steel. These doors offer versatility in design, aesthetic appeal, and cost-effectiveness. They are often recommended for interior use, projects with moderate security requirements, and budget-conscious applications.

How Durable are Metal Doors Compared to Wooden Doors?

Metal doors are ideal for harsh weather conditions as they resist indentation as well as abrasions. On the other hand, wood can crack and warp if not internally reinforced or covered with a portico or porch. In addition, choosing a quality lock door is very important as this will increase the door's security. It's important to incorporate superior hardware technifications to maintain a proper seal and increase the longevity of your door.

Are Metal Doors Fire-Rated?

Metal doors are fire rated, meaning they can withstand high temperatures and prevent the spread of fire and smoke for 30 minutes to 3 hours. Made from fire resistant materials and required to meet strict safety standards and building codes, these doors are suitable for use in a variety of environments to enhance safety and protection in emergency situations.

Why Do Metal Doors Rust?

Moisture build-up is the key cause of rusting metal. Rust is a form of corrosion within the metal that occurs when there is a large amount of oxidation in the metal. Much like plaque on your teeth, this oxidation slowly eats away at the metal the longer that it is left on it.
Rust can also be caused by various different harmful and corrosive chemicals often used in cleaning. These corrosive chemicals could include sulfuric acid, bromine, and sodium hydroxide.
A natural substance that can also greatly affect the health of metal is salt. Salt can be found in many forms such as salt water, salt air, and road salts. Although salt does not directly cause rust to form, it greatly accelerates the process in which rust forms.

Factors to Consider When Selecting a Metal Door

Security requirements

The level of security needed is a crucial consideration. If high-level security is a top priority, metal doors are often the preferred choice due to their robustness and resistance to forced entry.

Environmental factors

The environmental conditions to which the door will be exposed should be taken into account. Metal doors excel in extreme weather conditions, offering better resistance to fire, impact, and severe climates. On the other hand, certain metal doors, such as aluminium doors, are more suitable for interior or moderate environmental conditions.

Budget constraints

Budget is an important factor for many individuals. Steel doors tend to be more expensive than some metal doors due to the higher cost of steel. Therefore, budget considerations may influence the choice between steel doors and metal doors.

Material of Metal Door

Metal doors are typically made from materials such as steel, aluminum, or stainless steel. These materials offer exceptional strength, durability, and safety. Steel doors are often galvanized to prevent rust and corrosion, while aluminum doors offer a lighter weight option with resistance to weathering. Stainless steel doors are prized for their durability and resistance to stains and corrosion, making them suitable for harsh environments.

What is Filled Inside a Metal Door?

Honeycomb
Honeycomb cores get their name from the honeycomb shaped cardboard that is hardened by special resins. This material is the most commonly used at interior openings and is a heavy-duty, durable core. It can be fire rated up to 3 hours. The insulation value is lower than a foam core but it can be used at exterior openings if a cost effective solution is desired.

Polystyrene
The first level of insulated door core is the polystyrene which is a slab of foam that is placed in the core of the door. Metal doors with this core type are most often used at exterior openings and can be fire rated up to 3 hours. The insulation value is much higher than the honeycomb but lower than the polyurethane.

Polyurethane
This insulated core is a foam that is injected into the core and expands to fill all the available space within the cavity of the metal door. Polyurethane will have the best insulation value that is higher than both honeycomb and polystyrene. However, a polyurethane door cannot be fire rated.

Steel stiffened
Steel stiffened metal doors have steel channels that run the full height of the door and are spaced about 6″ O.C. across the width of the door. They are spot welded to the faces and the gaps between the channels is filled with insulation. These doors are often specified at high abuse areas or can be used at openings where sound transmission ratings are a concern.

Mineral core
Metal doors can be specified with a temperature rise rating which will require a sheet of mineral board inserted into the door. This material has properties that reduce the heat that is transferred through the door to the non-fire side of the opening. Temperature rise ratings can be 250, 450 or 650 degrees where the lower rating of 250 performs better than the higher ratings. In the event of a fire, this allows building occupants to pass by the opening unharmed by the heat from the fire.

Application of Metal Door

01.

Commercial

Metal doors are widely used in commercial buildings such as offices, shopping centers, and hotels due to their durability, security, and fire-resistant properties.

02.

Residential

Homeowners use metal doors for entry points, particularly for front and back doors, to enhance security and durability while also providing an option for aesthetic customization.

03.

Hospitals

Hospitals and clinics utilize metal doors for their strength, ease of cleaning, and ability to meet hygiene and fire safety standards, ensuring a safe environment for patients and staff.

04.

Schools

Schools and universities install metal doors in classrooms, laboratories, and main entrances to ensure safety, security, and long-term durability against high foot traffic.

4 Easy Ways to Remove Rust from Metal Doors

Sanding

Larger surface areas will require sanding. A sanding block is an easy way to get the leverage and coverage you need. Chemical removal or sanding will help remove both large and small patches to help you prep for priming and sealing.

Using a wire brush

A sturdy wire brush is perfect for grooves or other hard-to-reach areas because the bristles can get into cracks and crevices. Scrub the rust in a circular motion, and use a light pressure to prevent scratching the door.

Applying household chemicals

You can use a rust remover chemical, vinegar, or a paste made of baking soda and water for small patches of rust. Apply the paste to any rusty areas, leaving it for about 30 minutes. Use a soft cloth to remove the paste. Baking soda is especially effective for leftover spots after sanding or wire brush removal.

Using a grinder

You can use a grinder, drill, or sander if you need more muscle for stubborn areas. Use the appropriate grit for the amount of rust, and don't add too much pressure to prevent damaging the door's body underneath the rust.

Maintenance Tips for Metal Doors

Clean regularly

Dirt and dust can accumulate on the surface of your metal door over time, so it's important to give it a good cleaning every once in a while. Use warm water mixed with mild soap or detergent and a soft cloth to wipe down the entire surface of the door. It's especially important to clean around the hinges and locks, as dirt buildup could lead to damage or corrosion over time.

Check for damage

It's also important to inspect your metal door periodically for any signs of damage, such as dents or scratches. If you find any, you can use touch-up paint to fill in the damaged areas and restore the look of your door.

Re-coat as needed

Metal doors may need to be re-coated with a protective finish every couple of years to help protect them from rust and other elements. Make sure that you clean the surface thoroughly before applying the new coating, and wear gloves, goggles, and a face mask while applying it.

Lubricate moving parts

Over time, the moving parts on your metal door, such as the hinges and locks, can become worn or stiff. To keep them functioning correctly, it's important to lubricate them regularly with light machine oil. Be sure to wipe off any excess oil afterward so it doesn't attract dirt and dust.

FAQ

Q: How to maintain a metal door?

A: Clean Regularly. Dirt and dust can accumulate on the surface of your metal door over time, so it's important to give it a good cleaning every once in a while. Check for Damage. Re-Coat as Needed. Lubricate Moving Parts. Check Weatherstripping.

Q: How to prevent metal door rusting?

A: Seal the door by applying a rust-proof primer before painting. This helps prevent rust formation if the door is scratched or if the paint chips or peels. Regularly clean the door by wiping or washing it to remove dust, debris, and any existing moisture, thereby reducing the likelihood of rust.

Q: How long does a metal door last?

A: A beneficial byproduct of the strength and durability of metal is the low total cost of ownership. Properly installed and maintained metal doors often last 30 years or longer.

Q: How to get rust off a metal door?

A: You can use a rust remover chemical, vinegar, or a paste made of baking soda and water for small patches of rust. Apply the paste to any rusty areas, leaving it for about 30 minutes. Use a soft cloth to remove the paste. Baking soda is especially effective for leftover spots after sanding or wire brush removal.

Q: What is the difference between a steel door and a metal door?

A: Steel security doors, with their robust construction and exceptional security features, are ideal for applications that require high-level security and durability. On the other hand, metal doors provide a wider range of options, including aluminium, galvanised steel, and stainless steel.

Q: Which metal door is best?

A: You can use stainless steel doors for the interior and the exterior of your building. They are more durable and more weather resistant than hollow metal doors. Stainless steel is also less lik.

Q: Why do some houses have metal doors?

A: Since these doors are difficult to break through, they work as deterrents against home burglary. If a burglar or thief sees an iron door, they will think twice before trying to break in. Instead, they tend to target homes with less secure doors like fiberglass or wood.ely to result or corrode over time.

Q: Do metal doors rust?

A: One of the main causes of rust in metal doors is a lack of cleaning. Rust mostly forms because of a build-up of moisture and oxidation within a metal. When a metal surface is cleaned regularly and maintained, this greatly lowers the chance of rust formation and provides your metal door with a much longer lifespan.

Q: Can you replace a metal door without replacing the frame?

A: As long as the door frame is in good condition, and the new door panel is the same size as the old one, replacing a door without replacing the frame is certainly a possibility.

Q: What are exterior metal doors made of?

A: Steel and stainless steel are the most common materials used to make metal doors, each with their own advantages and disadvantages. The choice of material depends on the specific requirements of the building, such as strength, durability, resistance to fire and other hazards, and aesthetic appeal.

Q: Should I use a brush or roller for metal door?

A: A combination of both works best: use a high-quality synthetic bristle brush for detailed areas like trim work around windows or edges, then switch over to using foam rollers that provide smooth coverage across larger flat surfaces without leaving visible marks from bristles.

Q: Should you prime a metal door?

A: Painting a metal door is a simple process that can be done in a few hours. However, you will need to properly prep and sand the door before painting it to ensure that the paint will adhere properly. Use a high-quality primer designed for metal door application before painting it with your desired color.

Q: How many coats of primer on a metal door?

A: If you're going to be working with a material like metal or finished wood, the chance of absorption is less, and you will only need one coat of primer. If the metal is rusty, two coats will prevent the paint from peeling.

Q: What are the benefits of using a metal door?

A: Metal doors offer superior strength, durability, and security compared to other materials. They are resistant to fire, weather, and impact, making them ideal for various applications.

Q: Are metal doors fire-rated?

A: Yes, many metal doors are fire-rated, meaning they can withstand high temperatures and help contain the spread of fire and smoke for a specified duration, typically ranging from 20 minutes to 3 hours, depending on the rating.

Q: Can metal doors be used for both interior and exterior applications?

A: Metal doors can be used for both interior and exterior applications. Exterior metal doors are designed to withstand harsh weather conditions and provide security, while interior metal doors are often used in commercial and industrial settings for durability and fire resistance.

Q: Can metal doors be soundproof?

A: Metal doors can be designed to provide soundproofing. This is typically achieved by using insulated cores and seals that prevent sound from passing through gaps.

Q: What security features can be added to metal doors?

A: Metal doors can be equipped with various security features, such as reinforced frames, multi-point locking systems, tamper-proof hinges, and security grilles. These features enhance the door's ability to withstand forced entry and provide additional protection.

Q: How are metal doors constructed?

A: One of the most important parts of the metal door manufacturing process is called Spot welding. Spot Welding is used to attach hinge, closer and lock reinforcements within the body of the door, as well as securing any additional stiffeners. After the steel shell is assembled, a core is then added to the door.

Q: Will screws hold in a metal door?

A: Yes, it is possible to screw into a metal door, but it should be done carefully to avoid damaging the door or compromising its structural integrity. Metal doors typically have a metal frame with a hollow core that is filled with insulation or other materials.

As one of the most professional metal door manufacturers and suppliers in China, we're featured by quality products and competitive price. Please rest assured to buy or wholesale customized metal door made in China here from our factory.

steel bulkhead doors, 32 metal door, side hinged metal garage doors